Is chemotherapy absolutely necessary for late-stage lung cancer?
Generally, most patients with advanced lung cancer require chemotherapy. However, if a patient has certain gene mutations or is unable to tolerate the side effects of chemotherapy, it may not be recommended. If there are any concerns, timely medical consultation is advised. Detailed analysis is as follows:

In general, if the physical condition of a patient with advanced lung cancer permits and the disease is progressing rapidly with active cancer cells, continuing chemotherapy is necessary to maintain quality of life. Especially for non-small cell lung cancer patients with specific gene mutations, the effects of targeted drug therapy may be more significant.
If gene testing reveals gene mutations in patients with advanced lung cancer, particularly lung adenocarcinoma, they may be suitable candidates for oral targeted drug therapy. If a patient's physical condition is poor and they cannot tolerate the side effects of chemotherapy, doctors will generally recommend alternative treatment options based on the patient's preferences and overall condition.
Patients should maintain healthy lifestyle habits and follow a nutritious, scientifically balanced diet in daily life, actively adjusting their physical condition to ensure effective treatment outcomes.